2 papers
math.NT2022
The Heisenberg covering of the Fermat curve
Debargha Banerjee, Loïc Merel
For integer , K. Murty and D. Ramakrishnan defined the -th Heisenberg curve, as the compactified quotient of the upper half-plane by a certain non-congruence su…
math.NT2022
The Eisenstein cycles and Manin Drinfeld properties
Debargha Banerjee, Loic Merel
Consider a subgroup of finite index of modular group. We give an analytic criterion for a cuspidal divisor to be torsion in the Jacobian of the corresponding modular curve. By Bely…